3D computer modeling on balconies in auditorium

Balconies are important and common architectural features in modem hall designs. However, as the void in front of the balcony is not easily accessible, it is difficult to trace the sound propagating and reflecting from the stage above the main stall to the balcony by measurement. Therefore, a 3D model has been constructed and imported to Odeon for simulations. The model was built with reference to an existing auditorium. It was adjusted and tune according to the real hall measurement results. Afterwards, modifications were done to the balcony of the model, by changing its dimension, shape and eliminating it. In addition to setting the receiver points at different audience position throughout the hall, some receiver points were set at high level above the seats in the stall. We intended to look for the effects caused by the balconies to the sound field across the hall.